Catheter with reinforced oblong transverse cross section

Details Catheter with reinforced oblong transverse cross section Catheter with reinforced oblong transverse cross section

1997-03-17

1999-02-09

Coggins, Wynn Wood

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604280, 604282, A61M 2900

Patent

active

058687068

ABSTRACT:
An improved dilatation catheter is described which has an oblong transverse cross-section along essentially its entire length and a stiffening mandrel extending within the proximal section and a part of the distal portion. In a presently preferred embodiment, the large dimension of the proximal section of the catheter shaft is greater than the corresponding large dimension of the distal shaft section and a tapered region is provided between the proximal and distal shaft sections. The stiffening mandrel has a proximal section with at least one dimension greater than the corresponding dimension of the distal section and a tapered transition section is provided between the proximal and distal mandrel sections. The length of the proximal section of the mandrel is such so as to locate the tapered transition section of the mandrel within the proximal section of the catheter shaft. This results in a smoother overall transition between the proximal and distal sections of the catheter shaft.

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